<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<!-- import CSS -->
		<link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
	</head>
	<body>
		<div id="app">
			<el-container>
				<el-header>Header</el-header>
				<el-main>Main</el-main>
			</el-container>

			<el-container>
				<el-header>Header</el-header>
				<el-main>Main</el-main>
				<el-footer>Footer</el-footer>
			</el-container>

			<el-container>
				<el-aside width="200px">Aside</el-aside>
				<el-main>Main</el-main>
			</el-container>

			<el-container>
				<el-header>Header</el-header>
				<el-container>
					<el-aside width="200px">Aside</el-aside>
					<el-main>Main</el-main>
				</el-container>
			</el-container>

			<el-container>
				<el-header>Header</el-header>
				<el-container>
					<el-aside width="200px">Aside</el-aside>
					<el-container>
						<el-main>Main</el-main>
						<el-footer>Footer</el-footer>
					</el-container>
				</el-container>
			</el-container>

			<el-container>
				<el-aside width="200px">Aside</el-aside>
				<el-container>
					<el-header>Header</el-header>
					<el-main>Main</el-main>
				</el-container>
			</el-container>

			<el-container>
				<el-aside width="200px">Aside</el-aside>
				<el-container>
					<el-header>Header</el-header>
					<el-main>Main</el-main>
					<el-footer>Footer</el-footer>
				</el-container>
			</el-container>			
		</div>
	</body>
	<!-- import Vue before Element -->
	<script src="https://unpkg.com/vue/dist/vue.js"></script>
	<!-- import JavaScript -->
	<script src="https://unpkg.com/element-ui/lib/index.js"></script>
	<script>
		new Vue({
			el: '#app',
			data: function() {
				return {
					visible: false
				}
			}
		})
	</script>
	<style>
		.el-header,
		.el-footer {
			background-color: #B3C0D1;
			color: #333;
			text-align: center;
			line-height: 60px;
		}
	
		.el-aside {
			background-color: #D3DCE6;
			color: #333;
			text-align: center;
			line-height: 200px;
		}
	
		.el-main {
			background-color: #E9EEF3;
			color: #333;
			text-align: center;
			line-height: 160px;
		}
	
		body>.el-container {
			margin-bottom: 40px;
		}
	
		.el-container:nth-child(5) .el-aside,
		.el-container:nth-child(6) .el-aside {
			line-height: 260px;
		}
	
		.el-container:nth-child(7) .el-aside {
			line-height: 320px;
		}
	</style>
</html>
